From 917bcad8c37d95ad42be34c73fb1866a8b7aa14d Mon Sep 17 00:00:00 2001
From: Claude <claude@kuns.dev>
Date: Fri, 12 Jun 2026 08:03:30 +0000
Subject: [PATCH] =?UTF-8?q?fix:=20null-Guard=20f=C3=BCr=20log.data=20+=20F?=
 =?UTF-8?q?allback-Warnung=20im=20RPC-Client=20(Review=20Task=204)?=
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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 src/server/signals/onchain.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server/signals/onchain.ts b/src/server/signals/onchain.ts
index 918a298..8acfc15 100644
--- a/src/server/signals/onchain.ts
+++ b/src/server/signals/onchain.ts
@@ -30,7 +30,7 @@ export function decodeTransferLogs(logs: any[]): OnchainTransfer[] {
   for (const log of logs) {
     const token = TOKEN_BY_CONTRACT.get(String(log.address).toLowerCase());
     if (!token) continue;
-    const raw = BigInt(log.data === '0x' ? '0x0' : log.data);
+    const raw = BigInt(!log.data || log.data === '0x' ? '0x0' : log.data);
     out.push({
       symbol: token.symbol,
       instrument: token.instrument,
@@ -59,6 +59,7 @@ export async function rpc(method: string, params: unknown[]): Promise<any> {
       return json.result;
     } catch (err) {
       lastErr = err;
+      console.warn(`RPC ${method} auf ${url} fehlgeschlagen — nächster Endpunkt:`, err instanceof Error ? err.message : err);
     }
   }
   throw lastErr;